A bit over 2 months ago I bought a JBL 670 GTI Component set from Sonic. I read nothing but amazing things about the 660ís over the years, and that the 670s were virtually the same minus the waveguides. I get them installed and they sound great. Then 2 Sundayís ago the right woofer cuts out during moderate play during a 20 min drive. Next day I have my installer bench test the woofer and even try running another speaker in the place to rule out it being on my systems end. The test speaker works fine, but the 670 woofer wasnít producing any noise so I open an RA with Sonic because their product page claims they have a 3 year warranty So while Iím waiting for customer service to shoot me an email with instructions I get an email saying they inspected the item and thereís nothing they can do for me, despite the RA just being opened that morning and me not sending them anything yet! So after I point that out I kinda feel like support realized this and backpedaled. That left me with a gut feeling that this wasnít going to be resolved. So I send the woofer to them and as predicted they say they they canít find anything wrong with the speaker. I request a video and to my surprise I get one but in retrospect they only played it for a short time and at a low volume. I get the speaker back, hook it up and itís playing. Iím like Iím glad I was wrong, but after turning the volume up above like 5 , then it goes distorted and stops working. I donít even know what to do at this point.